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Commit 68d6a01b authored by Felipe Balbi's avatar Felipe Balbi
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usb: dwc3: core: introduce and use macros for Event Size register 



That register has more than just the event buffer
size; we can also mask and unmask that particular
interrupter on bit 31 of that register.

In this patch we introduce the necessary macros
and make sure to use the new macros while also
making sure we mask interrupts during driver
removal.

Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent fb49740d

drivers/usb/dwc3/core.c

+3 −2
Original line number Diff line number Diff line
@@ -218,7 +218,7 @@ static int dwc3_event_buffers_setup(struct dwc3 *dwc) 
		dwc3_writel(dwc->regs, DWC3_GEVNTADRHI(n),

				upper_32_bits(evt->dma));

		dwc3_writel(dwc->regs, DWC3_GEVNTSIZ(n),

				evt->length & 0xffff);

				DWC3_GEVNTSIZ_SIZE(evt->length));

		dwc3_writel(dwc->regs, DWC3_GEVNTCOUNT(n), 0);

	}
@@ -237,7 +237,8 @@ static void dwc3_event_buffers_cleanup(struct dwc3 *dwc) 


		dwc3_writel(dwc->regs, DWC3_GEVNTADRLO(n), 0);

		dwc3_writel(dwc->regs, DWC3_GEVNTADRHI(n), 0);

		dwc3_writel(dwc->regs, DWC3_GEVNTSIZ(n), 0);

		dwc3_writel(dwc->regs, DWC3_GEVNTSIZ(n), DWC3_GEVNTSIZ_INTMASK

				| DWC3_GEVNTSIZ_SIZE(0));

		dwc3_writel(dwc->regs, DWC3_GEVNTCOUNT(n), 0);

	}

}

drivers/usb/dwc3/core.h

+4 −0
Original line number Diff line number Diff line
@@ -175,6 +175,10 @@ 
#define DWC3_GTXFIFOSIZ_TXFDEF(n)	((n) & 0xffff)

#define DWC3_GTXFIFOSIZ_TXFSTADDR(n)	((n) & 0xffff0000)



/* Global Event Size Registers */

#define DWC3_GEVNTSIZ_INTMASK		(1 << 31)

#define DWC3_GEVNTSIZ_SIZE(n)		((n) & 0xffff)



/* Global HWPARAMS1 Register */

#define DWC3_GHWPARAMS1_EN_PWROPT(n)	(((n) & (3 << 24)) >> 24)

#define DWC3_GHWPARAMS1_EN_PWROPT_NO	0